US11956019B1ActiveUtility

Switched bleed currents

79
Assignee: ACACIA COMMUNICATIONS INCPriority: Feb 20, 2020Filed: Feb 19, 2021Granted: Apr 9, 2024
Est. expiryFeb 20, 2040(~13.6 yrs left)· nominal 20-yr term from priority
H03M 1/1245G11C 27/02H04B 10/501H04B 10/508H04B 10/516
79
PatentIndex Score
1
Cited by
2
References
16
Claims

Abstract

A method, system, and apparatus for multiplexing comprising feeding a signal into a sampler, splitting a first signal into an even branch at a first set of times, splitting a second signal into an odd branch at a second set of times, feeding a switch bleed current into the first branch at the second set of time and feeding the switch bleed current into the second branch at the first set of time.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A method for multiplexing comprising:
 feeding a signal into a sampler; 
 splitting a first signal into a first branch at a first set of times; 
 splitting a second signal into a second branch at a second set of times; 
 feeding a switch bleed current into the first branch at the second set of times; and 
 feeding the switch bleed current into the second branch at the first set of times. 
 
     
     
       2. The method of  claim 1  wherein the sampler is part of a high speed low power analog to digital converter. 
     
     
       3. The method of  claim 1  further comprising:
 splitting a third signal into a third branch at a third set of times; and 
 feeding the switch bleed current into the third branch at the second set of times. 
 
     
     
       4. The method of  claim 3  further comprising:
 feeding a switch bleed current into the third branch at the first set of times; 
 feeding the switch bleed current into the first branch at the third set of times; and 
 feeding the switch bleed current into the second branch at the third set of times. 
 
     
     
       5. The method of  claim 1  wherein the sampler and bleed current are implemented using P type devices. 
     
     
       6. The method of  claim 1  wherein the sampler and bleed current are implemented using N type devices. 
     
     
       7. A apparatus for multiplexing comprising:
 a sampler with a first branch and a second branch; wherein the sampler directs an input signal into the first branch at a first set of times and into an input feeding a signal into a switched bleed current device; wherein the switched bleed current device feeds a bleed current into the first branch at a second set of times and feeds the bleed current into the second branch at the first set of times. 
 
     
     
       8. The apparatus of  claim 7  wherein the sampler is part of a high speed low power analog to digital converter. 
     
     
       9. The apparatus of  claim 7  further comprising:
 a third branch; wherein the sampler directs the signal into the third branch at a third set of times; wherein the switched bleed device directs the bleed current into the third branch at the second set of times. 
 
     
     
       10. The apparatus of  claim 9  wherein the switched bleed device directs the bleed current into the third branch at the first set of times; wherein the switched bleed device directs the bleed current into the first branch at the third set of times; wherein the switched bleed device directs the switch bleed current into the second branch at the third set of times. 
     
     
       11. The apparatus of  claim 7  wherein the sampler and bleed current are implemented using P type devices. 
     
     
       12. A system for multiplexing comprising:
 a sampler with a first branch and a second branch; wherein the sampler directs an input signal into the first branch at a first set of times and into an input feeding a signal into a switched bleed current device; wherein the switched bleed current device feeds a bleed current into the first branch at a second set of times and feeds the bleed current into the second branch at the first set of times. 
 
     
     
       13. The system of  claim 12  wherein the sampler is part of a high speed low power analog to digital converter. 
     
     
       14. The system of  claim 12  comprising:
 a third branch; wherein the sampler directs the signal into the third branch at a third set of times; wherein switched bleed device directs the bleed current into the third branch at the second set of times. 
 
     
     
       15. The system of  claim 14  wherein the switched bleed device directs the bleed current into the third branch at the first set of times; wherein the switched bleed device directs the bleed current into the first branch at the third set of times; wherein the switched bleed device directs the switch bleed current into the second branch at the third set of times. 
     
     
       16. The system of  claim 12  wherein the sampler and bleed current are implemented using P type devices.

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